2 630 281 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
62174582279	11	35.9	old
334445489713	12	38.3	2008-07-14 20:29:15

ECM

Digits	B1	Curves
25	50000	232 / 280

Estimated T-Level: 24.1 ⓘ

TF below 2^75 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-18	Oliver Kruse	0B6B79EC918BB61D	2	1650587	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	0B6B79EC918BB61D	2	781263	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	storm5510	C-PRP	M2630281/62174582279/334445489713 : 0B6B79EC918BB61D
2017-10-18	Oliver Kruse	C-PRP	M2630281/62174582279/334445489713 : 0B6B79EC918BB61D
2008-07-14	George Woltman	F-ECM	Factor: 334445489713

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